./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 297d4f7e6fe1324d357f4812a6556f1cd58caa692e4601779e6f52e2ab17fbf7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:58:03,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:58:03,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:58:03,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:58:03,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:58:03,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:58:03,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:58:03,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:58:03,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:58:03,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:58:03,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:58:03,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:58:03,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:58:03,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:58:03,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:58:03,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:58:03,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:58:03,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:58:03,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:58:03,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:58:03,968 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:58:03,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:58:03,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:58:03,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:58:03,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:58:03,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:58:03,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:58:03,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:58:03,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:58:03,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:58:03,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:58:03,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:58:03,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:58:03,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:58:03,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:58:03,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:58:03,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:58:03,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:58:03,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:58:03,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:58:03,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:58:03,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:58:04,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:58:04,026 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:58:04,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:58:04,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:58:04,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:58:04,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:58:04,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:58:04,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:58:04,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:58:04,030 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:58:04,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:58:04,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:58:04,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:58:04,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:58:04,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:58:04,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:58:04,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:58:04,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:58:04,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:58:04,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:58:04,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:58:04,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:58:04,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:58:04,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:58:04,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:58:04,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:58:04,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:58:04,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:58:04,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:58:04,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:58:04,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:58:04,035 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:58:04,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:58:04,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:58:04,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 297d4f7e6fe1324d357f4812a6556f1cd58caa692e4601779e6f52e2ab17fbf7 [2022-07-21 05:58:04,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:58:04,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:58:04,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:58:04,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:58:04,359 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:58:04,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 05:58:04,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0242f06f/ab542a439ad34809b495edd9c1e04ac1/FLAGae5ca9581 [2022-07-21 05:58:04,974 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:58:04,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 05:58:04,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0242f06f/ab542a439ad34809b495edd9c1e04ac1/FLAGae5ca9581 [2022-07-21 05:58:05,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0242f06f/ab542a439ad34809b495edd9c1e04ac1 [2022-07-21 05:58:05,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:58:05,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:58:05,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:58:05,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:58:05,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:58:05,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:58:05" (1/1) ... [2022-07-21 05:58:05,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336444da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:05, skipping insertion in model container [2022-07-21 05:58:05,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:58:05" (1/1) ... [2022-07-21 05:58:05,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:58:05,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:58:05,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2022-07-21 05:58:05,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2022-07-21 05:58:05,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2022-07-21 05:58:05,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2022-07-21 05:58:05,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2022-07-21 05:58:05,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2022-07-21 05:58:05,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2022-07-21 05:58:05,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2022-07-21 05:58:05,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2022-07-21 05:58:05,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2022-07-21 05:58:05,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2022-07-21 05:58:05,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:58:05,861 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:58:05,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2022-07-21 05:58:06,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2022-07-21 05:58:06,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2022-07-21 05:58:06,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2022-07-21 05:58:06,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2022-07-21 05:58:06,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2022-07-21 05:58:06,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2022-07-21 05:58:06,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2022-07-21 05:58:06,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2022-07-21 05:58:06,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2022-07-21 05:58:06,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2022-07-21 05:58:06,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:58:06,160 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:58:06,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06 WrapperNode [2022-07-21 05:58:06,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:58:06,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:58:06,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:58:06,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:58:06,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,262 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2580 [2022-07-21 05:58:06,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:58:06,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:58:06,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:58:06,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:58:06,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:58:06,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:58:06,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:58:06,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:58:06,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (1/1) ... [2022-07-21 05:58:06,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:58:06,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:58:06,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:58:06,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:58:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:58:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:58:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:58:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:58:06,628 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:58:06,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:58:08,023 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:58:08,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:58:08,034 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:58:08,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:58:08 BoogieIcfgContainer [2022-07-21 05:58:08,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:58:08,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:58:08,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:58:08,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:58:08,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:58:05" (1/3) ... [2022-07-21 05:58:08,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f955065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:58:08, skipping insertion in model container [2022-07-21 05:58:08,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:58:06" (2/3) ... [2022-07-21 05:58:08,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f955065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:58:08, skipping insertion in model container [2022-07-21 05:58:08,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:58:08" (3/3) ... [2022-07-21 05:58:08,043 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 05:58:08,055 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:58:08,056 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-07-21 05:58:08,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:58:08,110 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9c07b4d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@647d19ff [2022-07-21 05:58:08,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-21 05:58:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-21 05:58:08,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:08,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:08,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:08,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:08,141 INFO L85 PathProgramCache]: Analyzing trace with hash 702631990, now seen corresponding path program 1 times [2022-07-21 05:58:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:08,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044411879] [2022-07-21 05:58:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:08,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:08,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044411879] [2022-07-21 05:58:08,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044411879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:08,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:08,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:58:08,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738877277] [2022-07-21 05:58:08,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:08,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:58:08,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:08,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:58:08,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:58:08,575 INFO L87 Difference]: Start difference. First operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:09,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:09,092 INFO L93 Difference]: Finished difference Result 740 states and 1288 transitions. [2022-07-21 05:58:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:58:09,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-07-21 05:58:09,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:09,108 INFO L225 Difference]: With dead ends: 740 [2022-07-21 05:58:09,108 INFO L226 Difference]: Without dead ends: 470 [2022-07-21 05:58:09,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:58:09,115 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 2316 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:09,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 518 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-07-21 05:58:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-07-21 05:58:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 459 states have (on average 1.2962962962962963) internal successors, (595), 469 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 595 transitions. [2022-07-21 05:58:09,191 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 595 transitions. Word has length 59 [2022-07-21 05:58:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:09,191 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 595 transitions. [2022-07-21 05:58:09,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:09,192 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 595 transitions. [2022-07-21 05:58:09,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-21 05:58:09,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:09,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:09,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:58:09,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash 728409025, now seen corresponding path program 1 times [2022-07-21 05:58:09,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898661237] [2022-07-21 05:58:09,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:09,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:09,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:09,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898661237] [2022-07-21 05:58:09,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898661237] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:09,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:09,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:58:09,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137126338] [2022-07-21 05:58:09,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:09,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:58:09,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:09,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:58:09,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:58:09,325 INFO L87 Difference]: Start difference. First operand 470 states and 595 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:09,565 INFO L93 Difference]: Finished difference Result 600 states and 761 transitions. [2022-07-21 05:58:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:58:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-07-21 05:58:09,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:09,571 INFO L225 Difference]: With dead ends: 600 [2022-07-21 05:58:09,571 INFO L226 Difference]: Without dead ends: 356 [2022-07-21 05:58:09,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:58:09,576 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1295 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:09,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 243 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:58:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-07-21 05:58:09,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-07-21 05:58:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 345 states have (on average 1.3101449275362318) internal successors, (452), 355 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 452 transitions. [2022-07-21 05:58:09,616 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 452 transitions. Word has length 59 [2022-07-21 05:58:09,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:09,617 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 452 transitions. [2022-07-21 05:58:09,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:09,617 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 452 transitions. [2022-07-21 05:58:09,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-21 05:58:09,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:09,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:09,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:58:09,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:09,621 INFO L85 PathProgramCache]: Analyzing trace with hash -466198780, now seen corresponding path program 1 times [2022-07-21 05:58:09,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:09,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545836589] [2022-07-21 05:58:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:09,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:09,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545836589] [2022-07-21 05:58:09,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545836589] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:09,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:09,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:58:09,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872434547] [2022-07-21 05:58:09,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:09,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:58:09,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:09,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:58:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:58:09,739 INFO L87 Difference]: Start difference. First operand 356 states and 452 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:10,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:10,053 INFO L93 Difference]: Finished difference Result 668 states and 866 transitions. [2022-07-21 05:58:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:58:10,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-07-21 05:58:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:10,056 INFO L225 Difference]: With dead ends: 668 [2022-07-21 05:58:10,056 INFO L226 Difference]: Without dead ends: 474 [2022-07-21 05:58:10,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:58:10,059 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1574 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:10,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 339 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:58:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-07-21 05:58:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 420. [2022-07-21 05:58:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 409 states have (on average 1.371638141809291) internal successors, (561), 419 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 561 transitions. [2022-07-21 05:58:10,089 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 561 transitions. Word has length 59 [2022-07-21 05:58:10,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:10,091 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 561 transitions. [2022-07-21 05:58:10,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:10,092 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 561 transitions. [2022-07-21 05:58:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-21 05:58:10,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:10,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:10,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:58:10,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:10,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1447561490, now seen corresponding path program 1 times [2022-07-21 05:58:10,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:10,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446534086] [2022-07-21 05:58:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:10,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:10,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:10,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446534086] [2022-07-21 05:58:10,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446534086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:10,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:10,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:58:10,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21189929] [2022-07-21 05:58:10,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:10,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:58:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:58:10,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:58:10,195 INFO L87 Difference]: Start difference. First operand 420 states and 561 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:10,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:10,341 INFO L93 Difference]: Finished difference Result 576 states and 768 transitions. [2022-07-21 05:58:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:58:10,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-07-21 05:58:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:10,343 INFO L225 Difference]: With dead ends: 576 [2022-07-21 05:58:10,343 INFO L226 Difference]: Without dead ends: 337 [2022-07-21 05:58:10,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:58:10,345 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 858 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:10,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 195 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:58:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-07-21 05:58:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2022-07-21 05:58:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3742331288343559) internal successors, (448), 336 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 448 transitions. [2022-07-21 05:58:10,366 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 448 transitions. Word has length 60 [2022-07-21 05:58:10,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:10,367 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 448 transitions. [2022-07-21 05:58:10,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 448 transitions. [2022-07-21 05:58:10,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:58:10,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:10,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:10,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:58:10,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash -944801897, now seen corresponding path program 1 times [2022-07-21 05:58:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:10,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041884523] [2022-07-21 05:58:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:10,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:10,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:10,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041884523] [2022-07-21 05:58:10,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041884523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:10,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:10,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:10,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050143507] [2022-07-21 05:58:10,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:10,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:10,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:10,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:10,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:10,511 INFO L87 Difference]: Start difference. First operand 337 states and 448 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:11,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:11,156 INFO L93 Difference]: Finished difference Result 749 states and 1031 transitions. [2022-07-21 05:58:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:11,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 05:58:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:11,178 INFO L225 Difference]: With dead ends: 749 [2022-07-21 05:58:11,179 INFO L226 Difference]: Without dead ends: 744 [2022-07-21 05:58:11,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:58:11,181 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1166 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:11,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 921 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:11,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-21 05:58:11,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2022-07-21 05:58:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3711656441717792) internal successors, (447), 336 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:11,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 447 transitions. [2022-07-21 05:58:11,219 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 447 transitions. Word has length 61 [2022-07-21 05:58:11,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:11,221 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 447 transitions. [2022-07-21 05:58:11,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 447 transitions. [2022-07-21 05:58:11,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:58:11,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:11,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:11,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:58:11,223 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:11,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:11,224 INFO L85 PathProgramCache]: Analyzing trace with hash 448084895, now seen corresponding path program 1 times [2022-07-21 05:58:11,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:11,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720636235] [2022-07-21 05:58:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:11,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:11,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720636235] [2022-07-21 05:58:11,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720636235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:11,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:11,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696172023] [2022-07-21 05:58:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:11,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:11,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:11,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:11,365 INFO L87 Difference]: Start difference. First operand 337 states and 447 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:11,986 INFO L93 Difference]: Finished difference Result 778 states and 1072 transitions. [2022-07-21 05:58:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 05:58:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:11,989 INFO L225 Difference]: With dead ends: 778 [2022-07-21 05:58:11,989 INFO L226 Difference]: Without dead ends: 638 [2022-07-21 05:58:11,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:58:11,993 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 2044 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:11,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 871 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-07-21 05:58:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 337. [2022-07-21 05:58:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3680981595092025) internal successors, (446), 336 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 446 transitions. [2022-07-21 05:58:12,024 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 446 transitions. Word has length 61 [2022-07-21 05:58:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 446 transitions. [2022-07-21 05:58:12,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 446 transitions. [2022-07-21 05:58:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:58:12,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:12,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:12,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:58:12,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1014019097, now seen corresponding path program 1 times [2022-07-21 05:58:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:12,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663632295] [2022-07-21 05:58:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:12,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:12,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:12,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663632295] [2022-07-21 05:58:12,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663632295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:12,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:12,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 05:58:12,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146112437] [2022-07-21 05:58:12,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:12,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:58:12,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:12,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:58:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:58:12,175 INFO L87 Difference]: Start difference. First operand 337 states and 446 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:12,853 INFO L93 Difference]: Finished difference Result 773 states and 1070 transitions. [2022-07-21 05:58:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:58:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 05:58:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:12,858 INFO L225 Difference]: With dead ends: 773 [2022-07-21 05:58:12,858 INFO L226 Difference]: Without dead ends: 756 [2022-07-21 05:58:12,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:58:12,860 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1065 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:12,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1262 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:58:12,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-07-21 05:58:12,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 337. [2022-07-21 05:58:12,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.361963190184049) internal successors, (444), 336 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 444 transitions. [2022-07-21 05:58:12,905 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 444 transitions. Word has length 61 [2022-07-21 05:58:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:12,906 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 444 transitions. [2022-07-21 05:58:12,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 444 transitions. [2022-07-21 05:58:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:58:12,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:12,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:12,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:58:12,908 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1327873536, now seen corresponding path program 1 times [2022-07-21 05:58:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:12,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409106695] [2022-07-21 05:58:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:12,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:13,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:13,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409106695] [2022-07-21 05:58:13,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409106695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:13,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:13,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 05:58:13,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522224305] [2022-07-21 05:58:13,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:13,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:58:13,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:58:13,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:58:13,041 INFO L87 Difference]: Start difference. First operand 337 states and 444 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:13,697 INFO L93 Difference]: Finished difference Result 741 states and 1018 transitions. [2022-07-21 05:58:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:58:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 05:58:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:13,701 INFO L225 Difference]: With dead ends: 741 [2022-07-21 05:58:13,701 INFO L226 Difference]: Without dead ends: 736 [2022-07-21 05:58:13,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:58:13,702 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1054 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:13,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1165 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:58:13,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-07-21 05:58:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 337. [2022-07-21 05:58:13,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 336 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 442 transitions. [2022-07-21 05:58:13,736 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 442 transitions. Word has length 61 [2022-07-21 05:58:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:13,737 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 442 transitions. [2022-07-21 05:58:13,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 442 transitions. [2022-07-21 05:58:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:58:13,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:13,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:13,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:58:13,738 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:13,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:13,739 INFO L85 PathProgramCache]: Analyzing trace with hash -798136398, now seen corresponding path program 1 times [2022-07-21 05:58:13,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:13,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043610082] [2022-07-21 05:58:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:13,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:13,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:13,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043610082] [2022-07-21 05:58:13,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043610082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:13,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:13,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 05:58:13,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78978053] [2022-07-21 05:58:13,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:13,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:58:13,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:13,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:58:13,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:58:13,890 INFO L87 Difference]: Start difference. First operand 337 states and 442 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:14,567 INFO L93 Difference]: Finished difference Result 800 states and 1096 transitions. [2022-07-21 05:58:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:58:14,568 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-21 05:58:14,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:14,570 INFO L225 Difference]: With dead ends: 800 [2022-07-21 05:58:14,570 INFO L226 Difference]: Without dead ends: 630 [2022-07-21 05:58:14,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:58:14,573 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1762 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:14,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 1260 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:58:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-07-21 05:58:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 337. [2022-07-21 05:58:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3496932515337423) internal successors, (440), 336 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 440 transitions. [2022-07-21 05:58:14,613 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 440 transitions. Word has length 61 [2022-07-21 05:58:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:14,614 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 440 transitions. [2022-07-21 05:58:14,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 440 transitions. [2022-07-21 05:58:14,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 05:58:14,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:14,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:14,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:58:14,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:14,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:14,632 INFO L85 PathProgramCache]: Analyzing trace with hash 556986468, now seen corresponding path program 1 times [2022-07-21 05:58:14,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:14,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058767343] [2022-07-21 05:58:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:14,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:14,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058767343] [2022-07-21 05:58:14,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058767343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:14,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:14,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:14,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879486330] [2022-07-21 05:58:14,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:14,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:14,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:14,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:14,742 INFO L87 Difference]: Start difference. First operand 337 states and 440 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:15,409 INFO L93 Difference]: Finished difference Result 887 states and 1233 transitions. [2022-07-21 05:58:15,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:15,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-21 05:58:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:15,412 INFO L225 Difference]: With dead ends: 887 [2022-07-21 05:58:15,412 INFO L226 Difference]: Without dead ends: 764 [2022-07-21 05:58:15,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:58:15,414 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 908 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:15,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 1219 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:15,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-07-21 05:58:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2022-07-21 05:58:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3466257668711656) internal successors, (439), 336 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 439 transitions. [2022-07-21 05:58:15,449 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 439 transitions. Word has length 63 [2022-07-21 05:58:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:15,450 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 439 transitions. [2022-07-21 05:58:15,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 439 transitions. [2022-07-21 05:58:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 05:58:15,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:15,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:15,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:58:15,452 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash -33472501, now seen corresponding path program 1 times [2022-07-21 05:58:15,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:15,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076090875] [2022-07-21 05:58:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:15,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:15,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:15,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076090875] [2022-07-21 05:58:15,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076090875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:15,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:15,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:15,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698624244] [2022-07-21 05:58:15,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:15,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:15,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:15,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:15,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:15,542 INFO L87 Difference]: Start difference. First operand 337 states and 439 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:16,148 INFO L93 Difference]: Finished difference Result 855 states and 1182 transitions. [2022-07-21 05:58:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-21 05:58:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:16,152 INFO L225 Difference]: With dead ends: 855 [2022-07-21 05:58:16,152 INFO L226 Difference]: Without dead ends: 744 [2022-07-21 05:58:16,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:58:16,153 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1310 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:16,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 1027 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:16,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-21 05:58:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2022-07-21 05:58:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.343558282208589) internal successors, (438), 336 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 438 transitions. [2022-07-21 05:58:16,212 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 438 transitions. Word has length 63 [2022-07-21 05:58:16,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:16,212 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 438 transitions. [2022-07-21 05:58:16,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 438 transitions. [2022-07-21 05:58:16,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 05:58:16,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:16,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:16,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:58:16,214 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:16,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:16,215 INFO L85 PathProgramCache]: Analyzing trace with hash 543767036, now seen corresponding path program 1 times [2022-07-21 05:58:16,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:16,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393342120] [2022-07-21 05:58:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:16,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:16,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393342120] [2022-07-21 05:58:16,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393342120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:16,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:16,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218089488] [2022-07-21 05:58:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:16,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:16,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:16,334 INFO L87 Difference]: Start difference. First operand 337 states and 438 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:16,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:16,903 INFO L93 Difference]: Finished difference Result 852 states and 1178 transitions. [2022-07-21 05:58:16,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:16,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-21 05:58:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:16,906 INFO L225 Difference]: With dead ends: 852 [2022-07-21 05:58:16,906 INFO L226 Difference]: Without dead ends: 744 [2022-07-21 05:58:16,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:58:16,907 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1338 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:16,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 995 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:16,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-21 05:58:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2022-07-21 05:58:16,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3404907975460123) internal successors, (437), 336 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 437 transitions. [2022-07-21 05:58:16,948 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 437 transitions. Word has length 63 [2022-07-21 05:58:16,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:16,948 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 437 transitions. [2022-07-21 05:58:16,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:16,949 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 437 transitions. [2022-07-21 05:58:16,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 05:58:16,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:16,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:16,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:58:16,950 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:16,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:16,951 INFO L85 PathProgramCache]: Analyzing trace with hash -130251118, now seen corresponding path program 1 times [2022-07-21 05:58:16,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:16,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305645181] [2022-07-21 05:58:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:16,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:17,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:17,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305645181] [2022-07-21 05:58:17,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305645181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:17,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:17,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181319217] [2022-07-21 05:58:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:17,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:17,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:17,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:17,050 INFO L87 Difference]: Start difference. First operand 337 states and 437 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:17,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:17,688 INFO L93 Difference]: Finished difference Result 882 states and 1222 transitions. [2022-07-21 05:58:17,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:17,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-21 05:58:17,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:17,691 INFO L225 Difference]: With dead ends: 882 [2022-07-21 05:58:17,691 INFO L226 Difference]: Without dead ends: 764 [2022-07-21 05:58:17,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:58:17,693 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1666 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:17,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 1138 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:17,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-07-21 05:58:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2022-07-21 05:58:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3374233128834356) internal successors, (436), 336 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 436 transitions. [2022-07-21 05:58:17,738 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 436 transitions. Word has length 63 [2022-07-21 05:58:17,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:17,738 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 436 transitions. [2022-07-21 05:58:17,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 436 transitions. [2022-07-21 05:58:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 05:58:17,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:17,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:17,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 05:58:17,740 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash -143831436, now seen corresponding path program 1 times [2022-07-21 05:58:17,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:17,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029329176] [2022-07-21 05:58:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:17,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:17,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:17,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029329176] [2022-07-21 05:58:17,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029329176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:17,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:17,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:58:17,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620273541] [2022-07-21 05:58:17,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:17,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:58:17,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:17,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:58:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:58:17,832 INFO L87 Difference]: Start difference. First operand 337 states and 436 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:18,132 INFO L93 Difference]: Finished difference Result 687 states and 902 transitions. [2022-07-21 05:58:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 05:58:18,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-21 05:58:18,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:18,133 INFO L225 Difference]: With dead ends: 687 [2022-07-21 05:58:18,134 INFO L226 Difference]: Without dead ends: 502 [2022-07-21 05:58:18,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:58:18,134 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1021 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:18,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 471 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:58:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-07-21 05:58:18,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 337. [2022-07-21 05:58:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.334355828220859) internal successors, (435), 336 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 435 transitions. [2022-07-21 05:58:18,173 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 435 transitions. Word has length 63 [2022-07-21 05:58:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:18,173 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 435 transitions. [2022-07-21 05:58:18,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 435 transitions. [2022-07-21 05:58:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 05:58:18,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:18,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:18,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 05:58:18,175 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:18,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:18,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2022048839, now seen corresponding path program 1 times [2022-07-21 05:58:18,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:18,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392432507] [2022-07-21 05:58:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:18,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:18,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:18,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392432507] [2022-07-21 05:58:18,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392432507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:18,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:18,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-21 05:58:18,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282059573] [2022-07-21 05:58:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:18,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 05:58:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 05:58:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:58:18,776 INFO L87 Difference]: Start difference. First operand 337 states and 435 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:21,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:21,868 INFO L93 Difference]: Finished difference Result 674 states and 883 transitions. [2022-07-21 05:58:21,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 05:58:21,869 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-21 05:58:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:21,871 INFO L225 Difference]: With dead ends: 674 [2022-07-21 05:58:21,871 INFO L226 Difference]: Without dead ends: 662 [2022-07-21 05:58:21,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=328, Invalid=1652, Unknown=0, NotChecked=0, Total=1980 [2022-07-21 05:58:21,873 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1838 mSDsluCounter, 6080 mSDsCounter, 0 mSdLazyCounter, 3604 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 3685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:21,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 6591 Invalid, 3685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3604 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 05:58:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-07-21 05:58:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 343. [2022-07-21 05:58:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 332 states have (on average 1.3313253012048192) internal successors, (442), 342 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2022-07-21 05:58:21,920 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 65 [2022-07-21 05:58:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:21,921 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2022-07-21 05:58:21,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2022-07-21 05:58:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 05:58:21,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:21,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:21,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 05:58:21,923 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash 71013216, now seen corresponding path program 1 times [2022-07-21 05:58:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:21,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566844258] [2022-07-21 05:58:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:22,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:22,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566844258] [2022-07-21 05:58:22,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566844258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:22,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:22,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-21 05:58:22,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881126409] [2022-07-21 05:58:22,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:22,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 05:58:22,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:22,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 05:58:22,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:58:22,424 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:24,805 INFO L93 Difference]: Finished difference Result 772 states and 1034 transitions. [2022-07-21 05:58:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 05:58:24,805 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-21 05:58:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:24,807 INFO L225 Difference]: With dead ends: 772 [2022-07-21 05:58:24,808 INFO L226 Difference]: Without dead ends: 659 [2022-07-21 05:58:24,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2022-07-21 05:58:24,818 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1702 mSDsluCounter, 5614 mSDsCounter, 0 mSdLazyCounter, 3461 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 3535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:24,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 6110 Invalid, 3535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3461 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 05:58:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-07-21 05:58:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 342. [2022-07-21 05:58:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 331 states have (on average 1.3262839879154078) internal successors, (439), 341 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 439 transitions. [2022-07-21 05:58:24,867 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 439 transitions. Word has length 65 [2022-07-21 05:58:24,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:24,867 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 439 transitions. [2022-07-21 05:58:24,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 439 transitions. [2022-07-21 05:58:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 05:58:24,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:24,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:24,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 05:58:24,869 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash -907607662, now seen corresponding path program 1 times [2022-07-21 05:58:24,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:24,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223590204] [2022-07-21 05:58:24,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:24,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:25,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:25,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223590204] [2022-07-21 05:58:25,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223590204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:25,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:25,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:58:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104012592] [2022-07-21 05:58:25,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:25,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:58:25,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:25,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:58:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:58:25,101 INFO L87 Difference]: Start difference. First operand 342 states and 439 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:26,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:26,053 INFO L93 Difference]: Finished difference Result 1121 states and 1569 transitions. [2022-07-21 05:58:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 05:58:26,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-21 05:58:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:26,058 INFO L225 Difference]: With dead ends: 1121 [2022-07-21 05:58:26,058 INFO L226 Difference]: Without dead ends: 993 [2022-07-21 05:58:26,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:58:26,059 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1312 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:26,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 3919 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:58:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-07-21 05:58:26,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 320. [2022-07-21 05:58:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 311 states have (on average 1.315112540192926) internal successors, (409), 319 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 409 transitions. [2022-07-21 05:58:26,125 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 409 transitions. Word has length 65 [2022-07-21 05:58:26,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:26,125 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 409 transitions. [2022-07-21 05:58:26,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 409 transitions. [2022-07-21 05:58:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 05:58:26,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:26,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:26,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 05:58:26,126 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1360022849, now seen corresponding path program 1 times [2022-07-21 05:58:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:26,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516331040] [2022-07-21 05:58:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:26,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:26,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516331040] [2022-07-21 05:58:26,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516331040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:26,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:26,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:58:26,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291170980] [2022-07-21 05:58:26,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:26,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:58:26,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:58:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:58:26,353 INFO L87 Difference]: Start difference. First operand 320 states and 409 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:27,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:27,041 INFO L93 Difference]: Finished difference Result 810 states and 1111 transitions. [2022-07-21 05:58:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:58:27,042 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-21 05:58:27,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:27,044 INFO L225 Difference]: With dead ends: 810 [2022-07-21 05:58:27,044 INFO L226 Difference]: Without dead ends: 641 [2022-07-21 05:58:27,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:58:27,045 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1286 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:27,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1463 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:58:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-07-21 05:58:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 257. [2022-07-21 05:58:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.3174603174603174) internal successors, (332), 256 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 332 transitions. [2022-07-21 05:58:27,118 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 332 transitions. Word has length 65 [2022-07-21 05:58:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:27,118 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 332 transitions. [2022-07-21 05:58:27,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 332 transitions. [2022-07-21 05:58:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 05:58:27,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:27,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:27,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 05:58:27,120 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1910519334, now seen corresponding path program 1 times [2022-07-21 05:58:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:27,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951880465] [2022-07-21 05:58:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:27,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951880465] [2022-07-21 05:58:27,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951880465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:27,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:27,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:27,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257559249] [2022-07-21 05:58:27,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:27,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:27,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:27,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:27,197 INFO L87 Difference]: Start difference. First operand 257 states and 332 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:27,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:27,601 INFO L93 Difference]: Finished difference Result 424 states and 558 transitions. [2022-07-21 05:58:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:58:27,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-21 05:58:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:27,603 INFO L225 Difference]: With dead ends: 424 [2022-07-21 05:58:27,603 INFO L226 Difference]: Without dead ends: 417 [2022-07-21 05:58:27,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:58:27,604 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 837 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:27,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 514 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:58:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-07-21 05:58:27,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 257. [2022-07-21 05:58:27,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.3095238095238095) internal successors, (330), 256 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 330 transitions. [2022-07-21 05:58:27,662 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 330 transitions. Word has length 66 [2022-07-21 05:58:27,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:27,663 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 330 transitions. [2022-07-21 05:58:27,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:27,663 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2022-07-21 05:58:27,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 05:58:27,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:27,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:27,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 05:58:27,664 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:27,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:27,665 INFO L85 PathProgramCache]: Analyzing trace with hash -679485959, now seen corresponding path program 1 times [2022-07-21 05:58:27,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:27,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482024847] [2022-07-21 05:58:27,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:27,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:28,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:28,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482024847] [2022-07-21 05:58:28,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482024847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:28,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:28,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-21 05:58:28,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307059046] [2022-07-21 05:58:28,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:28,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 05:58:28,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 05:58:28,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:58:28,079 INFO L87 Difference]: Start difference. First operand 257 states and 330 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:29,508 INFO L93 Difference]: Finished difference Result 825 states and 1125 transitions. [2022-07-21 05:58:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 05:58:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-21 05:58:29,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:29,511 INFO L225 Difference]: With dead ends: 825 [2022-07-21 05:58:29,511 INFO L226 Difference]: Without dead ends: 821 [2022-07-21 05:58:29,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 05:58:29,512 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 1534 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:29,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3076 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:58:29,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-07-21 05:58:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 262. [2022-07-21 05:58:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 257 states have (on average 1.3073929961089494) internal successors, (336), 261 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 336 transitions. [2022-07-21 05:58:29,598 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 336 transitions. Word has length 66 [2022-07-21 05:58:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:29,599 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 336 transitions. [2022-07-21 05:58:29,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 336 transitions. [2022-07-21 05:58:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 05:58:29,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:29,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:29,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 05:58:29,600 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:29,601 INFO L85 PathProgramCache]: Analyzing trace with hash -595757799, now seen corresponding path program 1 times [2022-07-21 05:58:29,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:29,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146448426] [2022-07-21 05:58:29,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:29,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:29,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146448426] [2022-07-21 05:58:29,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146448426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:29,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:29,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:58:29,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871505602] [2022-07-21 05:58:29,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:29,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:58:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:58:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:58:29,840 INFO L87 Difference]: Start difference. First operand 262 states and 336 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:30,374 INFO L93 Difference]: Finished difference Result 518 states and 709 transitions. [2022-07-21 05:58:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:58:30,374 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-21 05:58:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:30,375 INFO L225 Difference]: With dead ends: 518 [2022-07-21 05:58:30,375 INFO L226 Difference]: Without dead ends: 360 [2022-07-21 05:58:30,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:58:30,376 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 617 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:30,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1647 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:58:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-07-21 05:58:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 210. [2022-07-21 05:58:30,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.3269230769230769) internal successors, (276), 209 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-07-21 05:58:30,440 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 66 [2022-07-21 05:58:30,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:30,441 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-07-21 05:58:30,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-07-21 05:58:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-21 05:58:30,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:30,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:30,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 05:58:30,442 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:30,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:30,442 INFO L85 PathProgramCache]: Analyzing trace with hash 476193166, now seen corresponding path program 1 times [2022-07-21 05:58:30,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:30,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358065148] [2022-07-21 05:58:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:30,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:30,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:30,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358065148] [2022-07-21 05:58:30,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358065148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:30,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:30,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:58:30,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474409822] [2022-07-21 05:58:30,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:30,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:58:30,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:30,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:58:30,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:30,523 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:30,940 INFO L93 Difference]: Finished difference Result 500 states and 688 transitions. [2022-07-21 05:58:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:58:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-21 05:58:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:30,942 INFO L225 Difference]: With dead ends: 500 [2022-07-21 05:58:30,943 INFO L226 Difference]: Without dead ends: 364 [2022-07-21 05:58:30,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:58:30,945 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 603 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:30,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 527 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:58:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-07-21 05:58:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 210. [2022-07-21 05:58:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.3173076923076923) internal successors, (274), 209 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 274 transitions. [2022-07-21 05:58:31,013 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 274 transitions. Word has length 66 [2022-07-21 05:58:31,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:31,013 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 274 transitions. [2022-07-21 05:58:31,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 274 transitions. [2022-07-21 05:58:31,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 05:58:31,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:31,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:31,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 05:58:31,015 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:31,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:31,015 INFO L85 PathProgramCache]: Analyzing trace with hash 989039241, now seen corresponding path program 1 times [2022-07-21 05:58:31,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:31,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575120181] [2022-07-21 05:58:31,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:31,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:31,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:31,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:31,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575120181] [2022-07-21 05:58:31,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575120181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:31,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:31,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-21 05:58:31,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694528650] [2022-07-21 05:58:31,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:31,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 05:58:31,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:31,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 05:58:31,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:58:31,539 INFO L87 Difference]: Start difference. First operand 210 states and 274 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:33,356 INFO L93 Difference]: Finished difference Result 795 states and 1132 transitions. [2022-07-21 05:58:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 05:58:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-21 05:58:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:33,359 INFO L225 Difference]: With dead ends: 795 [2022-07-21 05:58:33,359 INFO L226 Difference]: Without dead ends: 789 [2022-07-21 05:58:33,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=272, Invalid=1450, Unknown=0, NotChecked=0, Total=1722 [2022-07-21 05:58:33,360 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1036 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:33,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 3092 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 05:58:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-07-21 05:58:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 221. [2022-07-21 05:58:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 219 states have (on average 1.3150684931506849) internal successors, (288), 220 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:33,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 288 transitions. [2022-07-21 05:58:33,424 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 288 transitions. Word has length 68 [2022-07-21 05:58:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:33,424 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 288 transitions. [2022-07-21 05:58:33,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 288 transitions. [2022-07-21 05:58:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 05:58:33,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:33,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:33,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 05:58:33,426 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:33,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:33,426 INFO L85 PathProgramCache]: Analyzing trace with hash 882869858, now seen corresponding path program 1 times [2022-07-21 05:58:33,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:33,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612474152] [2022-07-21 05:58:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:33,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:33,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:33,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612474152] [2022-07-21 05:58:33,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612474152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:33,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:33,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 05:58:33,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883722607] [2022-07-21 05:58:33,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:33,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 05:58:33,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:33,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 05:58:33,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:58:33,774 INFO L87 Difference]: Start difference. First operand 221 states and 288 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:35,272 INFO L93 Difference]: Finished difference Result 1117 states and 1607 transitions. [2022-07-21 05:58:35,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 05:58:35,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-21 05:58:35,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:35,275 INFO L225 Difference]: With dead ends: 1117 [2022-07-21 05:58:35,275 INFO L226 Difference]: Without dead ends: 1111 [2022-07-21 05:58:35,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2022-07-21 05:58:35,275 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1425 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:35,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 3151 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:58:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-07-21 05:58:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 222. [2022-07-21 05:58:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.3181818181818181) internal successors, (290), 221 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:35,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 290 transitions. [2022-07-21 05:58:35,338 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 290 transitions. Word has length 69 [2022-07-21 05:58:35,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:35,338 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 290 transitions. [2022-07-21 05:58:35,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:35,339 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 290 transitions. [2022-07-21 05:58:35,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 05:58:35,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:35,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:35,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 05:58:35,339 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:35,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:35,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1637741865, now seen corresponding path program 1 times [2022-07-21 05:58:35,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:35,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768713970] [2022-07-21 05:58:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:35,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:35,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:35,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768713970] [2022-07-21 05:58:35,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768713970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:35,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:35,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 05:58:35,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120406795] [2022-07-21 05:58:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:35,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 05:58:35,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:35,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 05:58:35,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 05:58:35,636 INFO L87 Difference]: Start difference. First operand 222 states and 290 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:36,907 INFO L93 Difference]: Finished difference Result 1030 states and 1476 transitions. [2022-07-21 05:58:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 05:58:36,908 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-21 05:58:36,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:36,911 INFO L225 Difference]: With dead ends: 1030 [2022-07-21 05:58:36,911 INFO L226 Difference]: Without dead ends: 1024 [2022-07-21 05:58:36,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 05:58:36,913 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 1350 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:36,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 2604 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:58:36,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-07-21 05:58:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 204. [2022-07-21 05:58:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.3152709359605912) internal successors, (267), 203 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 267 transitions. [2022-07-21 05:58:36,989 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 267 transitions. Word has length 69 [2022-07-21 05:58:36,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:36,989 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 267 transitions. [2022-07-21 05:58:36,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:36,989 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 267 transitions. [2022-07-21 05:58:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-21 05:58:36,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:36,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:36,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 05:58:36,990 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash 262304865, now seen corresponding path program 1 times [2022-07-21 05:58:36,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:36,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799960295] [2022-07-21 05:58:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:36,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:37,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:37,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799960295] [2022-07-21 05:58:37,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799960295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:37,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:37,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:58:37,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318299816] [2022-07-21 05:58:37,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:37,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:58:37,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:58:37,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:58:37,049 INFO L87 Difference]: Start difference. First operand 204 states and 267 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:37,581 INFO L93 Difference]: Finished difference Result 1052 states and 1547 transitions. [2022-07-21 05:58:37,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 05:58:37,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-21 05:58:37,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:37,583 INFO L225 Difference]: With dead ends: 1052 [2022-07-21 05:58:37,583 INFO L226 Difference]: Without dead ends: 946 [2022-07-21 05:58:37,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:58:37,584 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 902 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:37,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 960 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:58:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-07-21 05:58:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 308. [2022-07-21 05:58:37,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.3745928338762214) internal successors, (422), 307 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 422 transitions. [2022-07-21 05:58:37,707 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 422 transitions. Word has length 91 [2022-07-21 05:58:37,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:37,708 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 422 transitions. [2022-07-21 05:58:37,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 422 transitions. [2022-07-21 05:58:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 05:58:37,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:37,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:37,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 05:58:37,709 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:37,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:37,710 INFO L85 PathProgramCache]: Analyzing trace with hash -403802728, now seen corresponding path program 1 times [2022-07-21 05:58:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:37,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780476842] [2022-07-21 05:58:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:37,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:37,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780476842] [2022-07-21 05:58:37,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780476842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:37,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:37,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:58:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567934106] [2022-07-21 05:58:37,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:37,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:58:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:58:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:58:37,768 INFO L87 Difference]: Start difference. First operand 308 states and 422 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:38,370 INFO L93 Difference]: Finished difference Result 1254 states and 1838 transitions. [2022-07-21 05:58:38,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:58:38,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-21 05:58:38,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:38,373 INFO L225 Difference]: With dead ends: 1254 [2022-07-21 05:58:38,373 INFO L226 Difference]: Without dead ends: 1044 [2022-07-21 05:58:38,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:38,374 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 652 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:38,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 677 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:38,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-07-21 05:58:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 516. [2022-07-21 05:58:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4252427184466019) internal successors, (734), 515 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:38,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 734 transitions. [2022-07-21 05:58:38,673 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 734 transitions. Word has length 93 [2022-07-21 05:58:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:38,673 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 734 transitions. [2022-07-21 05:58:38,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:38,673 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 734 transitions. [2022-07-21 05:58:38,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 05:58:38,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:38,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:38,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 05:58:38,675 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:38,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:38,675 INFO L85 PathProgramCache]: Analyzing trace with hash 638646745, now seen corresponding path program 1 times [2022-07-21 05:58:38,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:38,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275094687] [2022-07-21 05:58:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:38,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:38,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275094687] [2022-07-21 05:58:38,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275094687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:38,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:38,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:58:38,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648728594] [2022-07-21 05:58:38,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:38,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:58:38,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:38,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:58:38,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:58:38,798 INFO L87 Difference]: Start difference. First operand 516 states and 734 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:39,195 INFO L93 Difference]: Finished difference Result 936 states and 1362 transitions. [2022-07-21 05:58:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:58:39,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-21 05:58:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:39,197 INFO L225 Difference]: With dead ends: 936 [2022-07-21 05:58:39,197 INFO L226 Difference]: Without dead ends: 518 [2022-07-21 05:58:39,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:58:39,198 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 420 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:39,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 380 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-07-21 05:58:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 516. [2022-07-21 05:58:39,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4174757281553398) internal successors, (730), 515 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:39,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 730 transitions. [2022-07-21 05:58:39,438 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 730 transitions. Word has length 93 [2022-07-21 05:58:39,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:39,439 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 730 transitions. [2022-07-21 05:58:39,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 730 transitions. [2022-07-21 05:58:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 05:58:39,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:39,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:39,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 05:58:39,441 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:39,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash 572153233, now seen corresponding path program 1 times [2022-07-21 05:58:39,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:39,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454106180] [2022-07-21 05:58:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:39,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:39,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:39,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454106180] [2022-07-21 05:58:39,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454106180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:39,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:39,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:58:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157951749] [2022-07-21 05:58:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:39,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:58:39,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:39,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:58:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:39,483 INFO L87 Difference]: Start difference. First operand 516 states and 730 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:40,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:40,002 INFO L93 Difference]: Finished difference Result 1300 states and 1888 transitions. [2022-07-21 05:58:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:58:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-21 05:58:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:40,006 INFO L225 Difference]: With dead ends: 1300 [2022-07-21 05:58:40,006 INFO L226 Difference]: Without dead ends: 882 [2022-07-21 05:58:40,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:40,007 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:40,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-07-21 05:58:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 872. [2022-07-21 05:58:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 871 states have (on average 1.4190585533869116) internal successors, (1236), 871 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1236 transitions. [2022-07-21 05:58:40,524 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1236 transitions. Word has length 93 [2022-07-21 05:58:40,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:40,524 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1236 transitions. [2022-07-21 05:58:40,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1236 transitions. [2022-07-21 05:58:40,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 05:58:40,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:40,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:40,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-21 05:58:40,526 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:40,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:40,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1651929496, now seen corresponding path program 1 times [2022-07-21 05:58:40,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:40,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087613752] [2022-07-21 05:58:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:40,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:40,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:40,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087613752] [2022-07-21 05:58:40,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087613752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:40,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:40,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:58:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896268255] [2022-07-21 05:58:40,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:40,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:58:40,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:40,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:58:40,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:58:40,583 INFO L87 Difference]: Start difference. First operand 872 states and 1236 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:41,865 INFO L93 Difference]: Finished difference Result 2620 states and 3785 transitions. [2022-07-21 05:58:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:58:41,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-21 05:58:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:41,870 INFO L225 Difference]: With dead ends: 2620 [2022-07-21 05:58:41,870 INFO L226 Difference]: Without dead ends: 2232 [2022-07-21 05:58:41,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:41,871 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 620 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:41,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 681 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-07-21 05:58:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1452. [2022-07-21 05:58:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 1.4321157822191593) internal successors, (2078), 1451 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 2078 transitions. [2022-07-21 05:58:42,667 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 2078 transitions. Word has length 93 [2022-07-21 05:58:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:42,668 INFO L495 AbstractCegarLoop]: Abstraction has 1452 states and 2078 transitions. [2022-07-21 05:58:42,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 2078 transitions. [2022-07-21 05:58:42,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 05:58:42,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:42,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:42,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 05:58:42,669 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:42,669 INFO L85 PathProgramCache]: Analyzing trace with hash -767888488, now seen corresponding path program 1 times [2022-07-21 05:58:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:42,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124717187] [2022-07-21 05:58:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:42,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124717187] [2022-07-21 05:58:42,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124717187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:42,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:42,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:58:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366850021] [2022-07-21 05:58:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:42,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:58:42,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:58:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:58:42,739 INFO L87 Difference]: Start difference. First operand 1452 states and 2078 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:44,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:44,311 INFO L93 Difference]: Finished difference Result 3006 states and 4347 transitions. [2022-07-21 05:58:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:58:44,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-21 05:58:44,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:44,318 INFO L225 Difference]: With dead ends: 3006 [2022-07-21 05:58:44,318 INFO L226 Difference]: Without dead ends: 2618 [2022-07-21 05:58:44,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:58:44,319 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 586 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:44,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 748 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2022-07-21 05:58:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 1838. [2022-07-21 05:58:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.437125748502994) internal successors, (2640), 1837 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2640 transitions. [2022-07-21 05:58:45,302 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2640 transitions. Word has length 93 [2022-07-21 05:58:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2640 transitions. [2022-07-21 05:58:45,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2640 transitions. [2022-07-21 05:58:45,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 05:58:45,304 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:45,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:45,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-21 05:58:45,304 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:45,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:45,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2122104904, now seen corresponding path program 1 times [2022-07-21 05:58:45,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:45,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182881853] [2022-07-21 05:58:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:45,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:45,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182881853] [2022-07-21 05:58:45,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182881853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:45,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:45,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:58:45,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985734723] [2022-07-21 05:58:45,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:45,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:58:45,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:45,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:58:45,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:45,346 INFO L87 Difference]: Start difference. First operand 1838 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:47,424 INFO L93 Difference]: Finished difference Result 5174 states and 7454 transitions. [2022-07-21 05:58:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:58:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-21 05:58:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:47,435 INFO L225 Difference]: With dead ends: 5174 [2022-07-21 05:58:47,435 INFO L226 Difference]: Without dead ends: 3434 [2022-07-21 05:58:47,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:47,438 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 73 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:47,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:47,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2022-07-21 05:58:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3288. [2022-07-21 05:58:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3287 states have (on average 1.431092181320353) internal successors, (4704), 3287 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:49,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4704 transitions. [2022-07-21 05:58:49,326 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4704 transitions. Word has length 94 [2022-07-21 05:58:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:49,326 INFO L495 AbstractCegarLoop]: Abstraction has 3288 states and 4704 transitions. [2022-07-21 05:58:49,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:49,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4704 transitions. [2022-07-21 05:58:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 05:58:49,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:49,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:49,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-21 05:58:49,328 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:49,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:49,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1022881993, now seen corresponding path program 1 times [2022-07-21 05:58:49,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:49,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657494094] [2022-07-21 05:58:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:49,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657494094] [2022-07-21 05:58:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657494094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:49,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:49,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:58:49,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7299963] [2022-07-21 05:58:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:49,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:58:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:49,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:58:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:49,370 INFO L87 Difference]: Start difference. First operand 3288 states and 4704 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:53,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:58:53,080 INFO L93 Difference]: Finished difference Result 9380 states and 13394 transitions. [2022-07-21 05:58:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:58:53,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-21 05:58:53,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:58:53,093 INFO L225 Difference]: With dead ends: 9380 [2022-07-21 05:58:53,093 INFO L226 Difference]: Without dead ends: 6190 [2022-07-21 05:58:53,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:53,099 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:58:53,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:58:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2022-07-21 05:58:56,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5900. [2022-07-21 05:58:56,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5899 states have (on average 1.4178674351585014) internal successors, (8364), 5899 states have internal predecessors, (8364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 8364 transitions. [2022-07-21 05:58:56,673 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 8364 transitions. Word has length 95 [2022-07-21 05:58:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:58:56,673 INFO L495 AbstractCegarLoop]: Abstraction has 5900 states and 8364 transitions. [2022-07-21 05:58:56,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:58:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 8364 transitions. [2022-07-21 05:58:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 05:58:56,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:58:56,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:58:56,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-21 05:58:56,675 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:58:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:58:56,676 INFO L85 PathProgramCache]: Analyzing trace with hash -369091068, now seen corresponding path program 1 times [2022-07-21 05:58:56,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:58:56,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444502848] [2022-07-21 05:58:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:58:56,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:58:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:56,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:58:56,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444502848] [2022-07-21 05:58:56,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444502848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:58:56,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:58:56,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:58:56,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939147712] [2022-07-21 05:58:56,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:58:56,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:58:56,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:56,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:58:56,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:58:56,720 INFO L87 Difference]: Start difference. First operand 5900 states and 8364 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:03,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:59:03,466 INFO L93 Difference]: Finished difference Result 16928 states and 23870 transitions. [2022-07-21 05:59:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:59:03,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-21 05:59:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:59:03,491 INFO L225 Difference]: With dead ends: 16928 [2022-07-21 05:59:03,491 INFO L226 Difference]: Without dead ends: 11126 [2022-07-21 05:59:03,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:59:03,500 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 56 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:59:03,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 333 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:59:03,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11126 states. [2022-07-21 05:59:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11126 to 10548. [2022-07-21 05:59:09,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10548 states, 10547 states have (on average 1.3983123162984734) internal successors, (14748), 10547 states have internal predecessors, (14748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10548 states to 10548 states and 14748 transitions. [2022-07-21 05:59:09,803 INFO L78 Accepts]: Start accepts. Automaton has 10548 states and 14748 transitions. Word has length 96 [2022-07-21 05:59:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:59:09,804 INFO L495 AbstractCegarLoop]: Abstraction has 10548 states and 14748 transitions. [2022-07-21 05:59:09,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 10548 states and 14748 transitions. [2022-07-21 05:59:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 05:59:09,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:59:09,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:59:09,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-21 05:59:09,806 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:59:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:59:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash -553088427, now seen corresponding path program 1 times [2022-07-21 05:59:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:59:09,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932462497] [2022-07-21 05:59:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:59:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:59:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:59:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:59:09,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:59:09,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932462497] [2022-07-21 05:59:09,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932462497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:59:09,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:59:09,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:59:09,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319569706] [2022-07-21 05:59:09,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:59:09,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:59:09,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:59:09,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:59:09,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:59:09,869 INFO L87 Difference]: Start difference. First operand 10548 states and 14748 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:59:21,458 INFO L93 Difference]: Finished difference Result 18658 states and 25852 transitions. [2022-07-21 05:59:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 05:59:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-21 05:59:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:59:21,504 INFO L225 Difference]: With dead ends: 18658 [2022-07-21 05:59:21,504 INFO L226 Difference]: Without dead ends: 18656 [2022-07-21 05:59:21,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:59:21,513 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 259 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:59:21,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 843 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:59:21,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18656 states. [2022-07-21 05:59:28,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18656 to 10932. [2022-07-21 05:59:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10932 states, 10931 states have (on average 1.3770011892781997) internal successors, (15052), 10931 states have internal predecessors, (15052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10932 states to 10932 states and 15052 transitions. [2022-07-21 05:59:28,421 INFO L78 Accepts]: Start accepts. Automaton has 10932 states and 15052 transitions. Word has length 97 [2022-07-21 05:59:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:59:28,422 INFO L495 AbstractCegarLoop]: Abstraction has 10932 states and 15052 transitions. [2022-07-21 05:59:28,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10932 states and 15052 transitions. [2022-07-21 05:59:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 05:59:28,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:59:28,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:59:28,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-21 05:59:28,423 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:59:28,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:59:28,424 INFO L85 PathProgramCache]: Analyzing trace with hash -404836723, now seen corresponding path program 1 times [2022-07-21 05:59:28,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:59:28,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266862178] [2022-07-21 05:59:28,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:59:28,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:59:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:59:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:59:28,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:59:28,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266862178] [2022-07-21 05:59:28,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266862178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:59:28,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:59:28,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:59:28,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888743494] [2022-07-21 05:59:28,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:59:28,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:59:28,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:59:28,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:59:28,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:59:28,482 INFO L87 Difference]: Start difference. First operand 10932 states and 15052 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:39,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:59:39,961 INFO L93 Difference]: Finished difference Result 20606 states and 28497 transitions. [2022-07-21 05:59:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:59:39,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-21 05:59:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:59:39,996 INFO L225 Difference]: With dead ends: 20606 [2022-07-21 05:59:39,996 INFO L226 Difference]: Without dead ends: 18188 [2022-07-21 05:59:40,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:59:40,005 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 645 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:59:40,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 758 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:59:40,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18188 states. [2022-07-21 05:59:48,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18188 to 13348. [2022-07-21 05:59:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13347 states have (on average 1.3770884843035889) internal successors, (18380), 13347 states have internal predecessors, (18380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 18380 transitions. [2022-07-21 05:59:48,532 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 18380 transitions. Word has length 97 [2022-07-21 05:59:48,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:59:48,533 INFO L495 AbstractCegarLoop]: Abstraction has 13348 states and 18380 transitions. [2022-07-21 05:59:48,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:59:48,534 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 18380 transitions. [2022-07-21 05:59:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 05:59:48,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:59:48,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:59:48,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-21 05:59:48,535 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 05:59:48,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:59:48,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1477016020, now seen corresponding path program 1 times [2022-07-21 05:59:48,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:59:48,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548637927] [2022-07-21 05:59:48,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:59:48,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:59:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:59:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:59:48,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:59:48,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548637927] [2022-07-21 05:59:48,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548637927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:59:48,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:59:48,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:59:48,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529891806] [2022-07-21 05:59:48,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:59:48,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:59:48,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:59:48,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:59:48,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:59:48,586 INFO L87 Difference]: Start difference. First operand 13348 states and 18380 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:00:02,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:00:02,001 INFO L93 Difference]: Finished difference Result 34744 states and 47782 transitions. [2022-07-21 06:00:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:00:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-21 06:00:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:00:02,055 INFO L225 Difference]: With dead ends: 34744 [2022-07-21 06:00:02,056 INFO L226 Difference]: Without dead ends: 21494 [2022-07-21 06:00:02,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:00:02,078 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 77 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:00:02,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 336 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:00:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21494 states. [2022-07-21 06:00:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21494 to 20084. [2022-07-21 06:00:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20084 states, 20083 states have (on average 1.3553751929492606) internal successors, (27220), 20083 states have internal predecessors, (27220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:00:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20084 states to 20084 states and 27220 transitions. [2022-07-21 06:00:17,845 INFO L78 Accepts]: Start accepts. Automaton has 20084 states and 27220 transitions. Word has length 98 [2022-07-21 06:00:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:00:17,846 INFO L495 AbstractCegarLoop]: Abstraction has 20084 states and 27220 transitions. [2022-07-21 06:00:17,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:00:17,846 INFO L276 IsEmpty]: Start isEmpty. Operand 20084 states and 27220 transitions. [2022-07-21 06:00:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 06:00:17,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:00:17,851 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:00:17,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-21 06:00:17,852 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 06:00:17,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:00:17,853 INFO L85 PathProgramCache]: Analyzing trace with hash -659580428, now seen corresponding path program 1 times [2022-07-21 06:00:17,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:00:17,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584588566] [2022-07-21 06:00:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:00:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:00:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:00:17,901 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:00:17,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:00:17,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584588566] [2022-07-21 06:00:17,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584588566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:00:17,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:00:17,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:00:17,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116716962] [2022-07-21 06:00:17,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:00:17,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:00:17,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:00:17,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:00:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:00:17,903 INFO L87 Difference]: Start difference. First operand 20084 states and 27220 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:00:33,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:00:33,339 INFO L93 Difference]: Finished difference Result 40072 states and 54334 transitions. [2022-07-21 06:00:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:00:33,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-07-21 06:00:33,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:00:33,371 INFO L225 Difference]: With dead ends: 40072 [2022-07-21 06:00:33,371 INFO L226 Difference]: Without dead ends: 20086 [2022-07-21 06:00:33,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:00:33,399 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:00:33,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 310 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:00:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20086 states. [2022-07-21 06:00:49,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20086 to 20084. [2022-07-21 06:00:49,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20084 states, 20083 states have (on average 1.3378479310859932) internal successors, (26868), 20083 states have internal predecessors, (26868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:00:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20084 states to 20084 states and 26868 transitions. [2022-07-21 06:00:49,947 INFO L78 Accepts]: Start accepts. Automaton has 20084 states and 26868 transitions. Word has length 124 [2022-07-21 06:00:49,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:00:49,948 INFO L495 AbstractCegarLoop]: Abstraction has 20084 states and 26868 transitions. [2022-07-21 06:00:49,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:00:49,948 INFO L276 IsEmpty]: Start isEmpty. Operand 20084 states and 26868 transitions. [2022-07-21 06:00:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 06:00:49,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:00:49,952 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:00:49,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-21 06:00:49,953 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-21 06:00:49,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:00:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash -448021413, now seen corresponding path program 1 times [2022-07-21 06:00:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:00:49,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809901252] [2022-07-21 06:00:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:00:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:00:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:00:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:00:50,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:00:50,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809901252] [2022-07-21 06:00:50,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809901252] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 06:00:50,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9315321] [2022-07-21 06:00:50,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:00:50,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 06:00:50,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:00:50,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 06:00:50,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 06:00:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:00:50,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 06:00:50,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 06:00:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:00:51,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 06:00:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:00:53,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9315321] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 06:00:53,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 06:00:53,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-21 06:00:53,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832942514] [2022-07-21 06:00:53,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 06:00:53,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-21 06:00:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:00:53,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-21 06:00:53,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:00:53,550 INFO L87 Difference]: Start difference. First operand 20084 states and 26868 transitions. Second operand has 27 states, 27 states have (on average 10.851851851851851) internal successors, (293), 26 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)